BRK-B
Berkshire Hathaway has filed 997 documents with the SEC between 2016 and 2026. The most frequent type is insider trade (274 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Filing | Type | Filed | Period covered |
|---|---|---|---|
| Insider trade | 4 | 2018-12-20 | 2018-12-18 |
| Institutional holdings | 13F-HR | 2018-11-14 | 2018-09-30 |
| Insider trade | 4 | 2018-11-13 | 2018-11-12 |
| Activist ownership stake (update) | SC 13D/A | 2018-11-13 | - |
| Insider trade | 4 | 2018-11-09 | 2018-11-07 |
| 3/A | - | 2018-11-09 | 2018-01-10 |
| Passive ownership stake | SC 13G | 2018-11-09 | - |
| Major company event | 8-K | 2018-11-05 | 2018-11-03 |
| Quarterly report | 10-Q | 2018-11-05 | 2018-09-30 |
| Insider trade | 4 | 2018-10-19 | 2018-10-17 |
| Activist ownership stake (update) | SC 13D/A | 2018-10-01 | - |
| Insider trade | 4 | 2018-09-28 | 2018-09-26 |
| Passive ownership stake (update) | SC 13G/A | 2018-09-10 | - |
| Insider trade | 4 | 2018-08-30 | 2018-08-29 |
| Insider trade | 4 | 2018-08-16 | 2018-08-15 |
| Major company event | 8-K | 2018-08-15 | 2018-08-15 |
| Institutional holdings | 13F-HR | 2018-08-14 | 2018-06-30 |
| Passive ownership stake (update) | SC 13G/A | 2018-08-10 | - |
| Prospectus supplement | 424B2 | 2018-08-08 | - |
| Free writing prospectus | FWP | 2018-08-07 | - |
| Prospectus supplement | 424B2 | 2018-08-07 | - |
| New insider ownership | 3 | 2018-08-06 | 2018-07-26 |
| Major company event | 8-K | 2018-08-06 | 2018-08-04 |
| Quarterly report | 10-Q | 2018-08-06 | 2018-06-30 |
| Activist ownership stake | SC 13D | 2018-07-23 | - |
| Major company event | 8-K | 2018-07-19 | 2018-07-17 |
| Activist ownership stake (update) | SC 13D/A | 2018-07-18 | - |
| Insider trade | 4 | 2018-07-17 | 2018-07-16 |
| Employee plan annual report | 11-K | 2018-06-29 | 2017-12-31 |
| Insider trade | 4 | 2018-06-28 | 2018-05-27 |
| Employee plan annual report | 11-K | 2018-06-27 | 2017-12-31 |
| Employee plan annual report | 11-K | 2018-06-22 | 2017-12-31 |
| Employee plan annual report | 11-K | 2018-06-22 | 2017-12-31 |
| Employee plan annual report | 11-K | 2018-06-21 | 2017-12-31 |
| Employee plan annual report | 11-K | 2018-06-21 | 2017-12-31 |
| Employee plan annual report | 11-K | 2018-06-21 | 2017-12-31 |
| Employee plan annual report | 11-K | 2018-06-20 | 2017-12-31 |
| Employee plan annual report | 11-K | 2018-06-20 | 2017-12-31 |
| Employee plan annual report | 11-K | 2018-06-19 | 2017-12-31 |
| Employee plan annual report | 11-K | 2018-06-19 | 2017-12-31 |
| Insider trade | 4 | 2018-06-18 | 2018-06-01 |
| Employee plan annual report | 11-K | 2018-06-12 | 2017-12-31 |
| Activist ownership stake (update) | SC 13D/A | 2018-06-11 | - |
| SD | - | 2018-05-31 | - |
| Insider trade | 4 | 2018-05-25 | 2018-05-24 |
| Employee stock plan | S-8 | 2018-05-18 | - |
| Insider trade | 4 | 2018-05-16 | 2018-05-15 |
| Institutional holdings | 13F-HR | 2018-05-15 | 2018-03-31 |
| Activist ownership stake (update) | SC 13D/A | 2018-05-11 | - |
| Insider trade | 4 | 2018-05-10 | 2018-05-10 |